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How to realize the function of the trap on mobile phone?

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` private class SendTrap extends AsyncTask { protected Void doInBackground(Void... params) { PDUv1 pdu = new PDUv1(); pdu.setType(PDU.V1TRAP); pdu.setGenericTrap(PDUv1.COLDSTART); pdu.add(new VariableBinding(new OID(new int[]{ 1,3,6,1}),new Integer32(1995)));//1, 3, 6, 1, 2, 1,...